Shop › EcoPower 3mm "High Strength" Steel Socket Head Cap Screws (10) (3x35mm) EcoPower 3mm "High Strength" Steel Socket Head Cap Screws (10) (3x35mm) $2.99 This is a pack of EcoPower 3mm "High Strength" Steel Socket Head Cap Screws. This is a pack of EcoPower 3mm "High Strength" Steel Socket Head Cap Screws. Add To Cart Added!